@misc{Langerfeld_Kaspar_(ca_1540-1571)_Elegia,
 author={Langerfeld, Kaspar (ca 1540-1571)},
 howpublished={online},
 publisher={[Eichorn, Johann (1524-1583). Druk.]},
 language={lat},
 type={stary druk},
 title={Elegia Casparis Langerfeldii De Obitv Prvdentissimi Viri Petri Langerfeldii Senatoris Regiomontani in Prvssia &c. : Patris Svi Amantissimi},
}